Compilare: user.cpp: In function ‘void readPackages()’: user.cpp:93:41: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d ", &package[i][j]); ^ user.cpp: In function ‘int main()’: user.cpp:157:28: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d ", &n, &k); ^